Party Poker No-Limit Hold'em, $1 BB (6 max, 5 handed) converter

BB ($93.5)
UTG ($15.05)
Hero ($107.75)
Button ($85.7)
SB ($134.25)

Preflop: Hero is MP with A, A.
1 fold, Hero raises to $4, 2 folds, BB calls $3.

Flop: ($8.50) Q, Q, 8 (2 players)
BB checks, Hero bets $10, BB raises to $20, Hero calls $10.

Turn: ($48.50) 8 (2 players)
BB checks, Hero checks.

River: ($48.50) T (2 players)
BB checks, Hero checks.

Final Pot: $48.50

I think i misplayed this hand, i only played a few hands so my reads were off. What do you think he had?